May 27: HW due Thursday 5/28... complete classwork. Set a goal of spending a solid 30 minutes either completing the packet and/or studying for the exam!
CW: Cavalieri's Principle: solids of equal height and in which all corresponding cross sections match in area are of equal volume
May 14:
No HW due Monday 5/18
CW: Circles Unit Test
May 14: Circles Unit Test
May 13: HW due Thursday 5/14: Study for Circles Unit Test; focus on:
1. chord/circle relationships
2. Practice Test vocabulary
3. Practice Test "tricks", including a) recognizing right angles, b) drawing in radii, c) recognizing quadrilaterals and triangles to find missing angles, d) recognizing inscribed angles and central angles (and being careful of angles that are NOT central angles)
CW: 1. continuation of practice test, 2. introduction to new topic: 3D
May 12: HW due Wednesday 5/13... 1) Complete the LAST PAGE (page 5 of the attached) 2) Be sure that you have completed through #6 (through page 2 of the attached):
CW: practice test to prepare for Thursday's unit test... remember, these practice problems are a notch more difficult than the problems on the unit test will be
CW: continued practice completing the square to convert an equation from general form to standard form (no 9th grade due to PARCC)
April 28:
NO CLASS - Geometry PARCC
April 27:
No HW due Tuesday 4/28 (no class due to PARCC)
CW: equation of a circle and completing the square to convert an equation from general form to standard form
Standard form: General form:
April 23: HW due Monday 4/27... the first page is required, try some problems on the second page if you want to have fun :) . We will be working on them in class on Monday.
April 23: Circles Quiz 1... topics covered: anything with 7.2 and 7.3 heading including...
1. relationships between circles and chords
2. measure of an arc
3. length of an arc
4. area of a sector
April 22: HW due Thursday 4/23: Study for Circles Quiz! Use practice problems and your chart (If two chords in a circle are congruent then...)
CW: Equation of a circle and introduction to completing the square.
CW: 1. measure of an arc, 2. length of an arc, 3. area of a sector... to be continued tomorrow!
April 18 EXTRA CREDIT OPPORTUNITY:
Show evidence (a session handout, picture of you at an event, etc.) of having attending MATHFEST! It is on Saturday, April 18th. Events and exhibitions run from 10:00 to 4:00 at the Smithsonians on the mall. See the website for more information: http://www.mathfest.org or ask Ms. Rapoport.
April 15: Trigonometry Unit Test What you need to know: 1. memorize SOHCAHTOA (you have each trigonometric ratio in your notes) 2. finding missing sides and missing angles 3. law of sines and law of cosines 4. word problems
CW: Continuation of chord relationships in circles
April 13:
No HW (you can always study for the unit test!!)
CW: Key Concepts:
1. In a circle, the degree measure of an arc is equal to the measure of the central angle that intercepts the arc.
2. Congruent chords have congruent central angles.
CW: Introduction to law of sines and law of cosines (this is the way you can use trigonometry if you DON'T have a right triangle)
Q4 begins! Extra Credit Opportunity NEW DUE DATE: By Tuesday 4/7, complete Phase One and Two using a different structure (something too tall to measure). Example: You could find the height of something at school (lamp post, street sign, tree) or you could find the height of something at home. You will need to repeat EVERYTHING from phase one and phase two. Be sure to record the time and date!
March 24 - 27: See March 23
March 23:
No HW due Tuesday 3/24 (Various grades will be missing from class on various days this week due to PARCC testing so we will be focusing on in-class work.)
CW: We started our week-long project by collecting data for Phase One.
March 19: HW due Monday 3/23: Similarity Take Home Quiz... use your notes but don't use other people for help! Also, try to complete the word problems we started in class:
CW: Convex versus concave polygons... see this link for an explanation of the difference. Note: the formula for the sum of the interior angles of a polygon is true for ALL polygons and the sum of the exterior angles is 360 for ALL polygons.
February 18:
No HW due Thursday 2/19 (9th graders participated in Romeo & Juliet rehearsal)
CW: Regular Polygons: Using the definition (polygons that are equilateral and equiangular), students determined interior and exterior angle measurements given various pieces of information (ex: number of sides, sum of interior angles, measure of an exterior angle, etc.).
February 9: HW due Tuesday 2/10... just complete the circled numbers... if the scan is hard to read: #15-17, 22-25, 28-31
CW: Review of factoring and solving a quadratic equation and applying to the properties we know about parallelograms. For a review of solving quadratic equations, follow examples 3 and 7 in this link.
February 2: HW due Tuesday 2/3: STUDY! Below find the proof answer keys and a copy of the blank proofs (the blank proofs will be handed out in class so you can practice!)
(the scanned copy is not great in quality... see Ms. Rapoport if you need an additional copy)
Each case will be graded according to the criteria below:
1. Quadrilateral ABCD is correctly graphed (1 pt)
2. Quadrilateral ABCD is correctly identified (1 pt)
3. Evidence includes ALL necessary calculations and explanations (slope, distance, etc.) (2 pts)
4. Area of Quadrilateral ABCD is correctly calculated (1 pt) (use this website if you are struggling to find area)
5. Thorough evidence is show to justify area (2 pts)
January 27: HW due Wednesday 1/28: PROJECT!
CW: Applying properties of quadrilaterals to solve problems. (Check back for the copy with the answers filled-in.)
CW: 1. Discussed how to find area of figures in the Quadrilateral Detective Project (box method) 2. Group proofs to be presented on the next "proof day" (Wednesday).
January 22: HW due Monday 1/26: Make sure both parallelogram proofs are complete.
CW: 1. Use coordinate geometry to justify a specific quadrilateral. 2. Review of Case #2 for project (due Wednesday)
January 21: HW due Thursday 1/22: Complete Case #2 in the Quadrilateral Detective Project.
CW: 1. Quadrilateral Property sorting activity for rhombus, parallelogram, square, and rectangle.
2. Proof on the coordinate plane (see document below):
3. This is the link for the description of most of the quadrilaterals we have studied.
January 20: HW due Wedensday 1/21: Try to create a quadrilateral family tree with the following: quadrilateral, square, rhombus, rectangle, parallelogram, isosceles trapezoid, trapezoid, and kite
CW: PARCC Practice Test, start of activity on defining characteristics of various quadrilaterals
Unit 4 starts January 20!
January 15: Triangle Congruence Proof Assessment No HW due Tuesday 1/20 (No school Monday)
DELTA CLASS CALENDAR
FINAL EXAM REVIEW MATERIALS:
May 27:
HW due Thursday 5/28... complete classwork. Set a goal of spending a solid 30 minutes either completing the packet and/or studying for the exam!
May 26:
HW due Wednesday 5/27:
CW:
May 21:
HW due Tuesday 5/26: Study review topics and practice problems:
CW: group work on 3-D word problems (last topic of the year!!)
May 20:
HW due Thursday 5/21:
CW: continuation of 3-D solids formed by 2-D rotations; 3-D word problems
May 19:
HW due Wednesday 5/20 (note "4" and "7" should both say "cm"):
CW: determining the 3-D solid formed by rotating a 2-D figure (https://learnzillion.com/lessons/3488-predict-3d-results-of-rotating-simple-figures)
May 18:
HW due Tuesday 5/19:
CW: Cavalieri's Principle: solids of equal height and in which all corresponding cross sections match in area are of equal volume
May 14:
No HW due Monday 5/18
CW: Circles Unit Test
May 14: Circles Unit Test
May 13:
HW due Thursday 5/14: Study for Circles Unit Test; focus on:
1. chord/circle relationships
2. Practice Test vocabulary
3. Practice Test "tricks", including a) recognizing right angles, b) drawing in radii, c) recognizing quadrilaterals and triangles to find missing angles, d) recognizing inscribed angles and central angles (and being careful of angles that are NOT central angles)
CW: 1. continuation of practice test, 2. introduction to new topic: 3D
May 12:
HW due Wednesday 5/13... 1) Complete the LAST PAGE (page 5 of the attached) 2) Be sure that you have completed through #6 (through page 2 of the attached):
CW: practice test to prepare for Thursday's unit test... remember, these practice problems are a notch more difficult than the problems on the unit test will be
May 11:
HW due Tuesday 5/12... complete:
CW: in-depth review of homework and group quiz
May 7:
HW due Monday 5/11:
CW:
May 6:
HW due Thursday 5/7... complete the back:
CW: introduction to tangent properties and practice with inscribed angles
May 5:
HW due Wednesday 5/6:
CW: continued practice with inscribed angles, including proof
May 4:
HW due Tuesday 5/5... complete classwork:
CW: discovering relationship between an inscribed angle and its intercepted arc
April 30:
HW due Monday 5/4:
CW: final day of circle equations!
April 29:
No HW due Thursday 4/30
CW: continued practice completing the square to convert an equation from general form to standard form (no 9th grade due to PARCC)
April 28:
NO CLASS - Geometry PARCC
April 27:
No HW due Tuesday 4/28 (no class due to PARCC)
CW: equation of a circle and completing the square to convert an equation from general form to standard form
Standard form:
April 23:
HW due Monday 4/27... the first page is required, try some problems on the second page if you want to have fun :) . We will be working on them in class on Monday.
CW: Circles Quiz 1
April 23: Circles Quiz 1... topics covered: anything with 7.2 and 7.3 heading including...
1. relationships between circles and chords
2. measure of an arc
3. length of an arc
4. area of a sector
April 22:
HW due Thursday 4/23: Study for Circles Quiz! Use practice problems and your chart (If two chords in a circle are congruent then...)
CW: Equation of a circle and introduction to completing the square.
April 21:
HW due Wednesday 4/22:
CW: tying together measure of an arc, length of an arc, and area of a sector
April 20:
HW due Tuesday 4/21... STOP where it says "Area of a Sector"
CW: 1. measure of an arc, 2. length of an arc, 3. area of a sector... to be continued tomorrow!
April 18 EXTRA CREDIT OPPORTUNITY:
Show evidence (a session handout, picture of you at an event, etc.) of having attending MATHFEST! It is on Saturday, April 18th. Events and exhibitions run from 10:00 to 4:00 at the Smithsonians on the mall. See the website for more information: http://www.mathfest.org or ask Ms. Rapoport.
4/16:
HW due Monday 4/20:
CW: relationships between circles and chords
April 15:
TEST DAY! No HW due Thursday 4/16
CW: Trigonometry Unit Test
April 15: Trigonometry Unit Test
What you need to know:
1. memorize SOHCAHTOA (you have each trigonometric ratio in your notes)
2. finding missing sides and missing angles
3. law of sines and law of cosines
4. word problems
Use the documents below to guide your study!
April 14:
HW: Study for trigonometry unit test
CW: Continuation of chord relationships in circles
April 13:
No HW (you can always study for the unit test!!)
CW: Key Concepts:
1. In a circle, the degree measure of an arc is equal to the measure of the central angle that intercepts the arc.
2. Congruent chords have congruent central angles.
April 9:
HW due Monday 3/13:
CW: additional practice for law of sines and law of cosines; introduction to circles vocabulary
April 8:
HW due Thursday 3/9:
CW: continuation of law of sines and cosines, more practice on trigonometry word problems
April 7:
HW due Wednesday 3/8... complete Section II as best you can:
CW: Introduction to law of sines and law of cosines (this is the way you can use trigonometry if you DON'T have a right triangle)
Q4 begins!
Extra Credit Opportunity NEW DUE DATE: By Tuesday 4/7, complete Phase One and Two using a different structure (something too tall to measure). Example: You could find the height of something at school (lamp post, street sign, tree) or you could find the height of something at home. You will need to repeat EVERYTHING from phase one and phase two. Be sure to record the time and date!
March 24 - 27: See March 23
March 23:
No HW due Tuesday 3/24 (Various grades will be missing from class on various days this week due to PARCC testing so we will be focusing on in-class work.)
CW: We started our week-long project by collecting data for Phase One.
March 23: Take home quiz due!
March 19:
HW due Monday 3/23: Similarity Take Home Quiz... use your notes but don't use other people for help! Also, try to complete the word problems we started in class:
CW: continuation of finding missing side lengths and the introduction of word problems
March 18:
HW due Thursday 3/19:
CW: introduction to trigonometry, discovering trigonometric ratios (sin, cos, tan) by measuring triangles
March 17:
No new HW due Wednesday 3/18... we will review the homework due 3/17, when 9th graders were at the Newseum.
CW:
March 16:
HW due Tuesday 3/17... choose 10!
CW: dilations pre-images with centers other than the origin (page 3 of this link has a helpful explanation)
March 12:
HW due Monday 3/16... complete both assignments below (we started 5.7 in class):
CW: review of triangle similarity proofs and introduction to word problems involving similar figures/proportional relationships
March 11:
HW due Thursday 3/12... complete the practice that you began for homework on March 10:
CW: Geometric Constructions... using this link we practiced various geometric constructions on the handout below:
March 10:
HW due Wednesday 3/11... choose TEN:
CW: review of triangle proofs (we will continue this tomorrow!) and introduction to new triangle similarity theorems
March 9:
HW due Tuesday 3/10:
If you did not finish your exit slip during class, make sure to have that ready for Tuesday as well:
CW: Triangle Similarity - Proofs!
March 4:
HW due Thursday 3/5... Use this link for help with the first section:
If we don't have school on Friday... try this!
CW: Introduction to similarity and finding missing side and angle values given similar polygons
March 3:
HW due Wednesday 3/4... you received a copy with notes filled in. Complete practice problems:
CW: Unit 4 Test Part II
March 2:
HW due Tuesday 3/3: Study for Part II of test!
CW: Unit 4 Test Part I
February 26: Two-hour delay - no class UNIT 4 TEST MOVED TO MONDAY 3/2!
February 26: UNIT 4 TEST - Polygons and Quadrilaterals
February 25:
HW due Thursday 2/26: Study for the Unit 4 test using the resources above.
CW: PARCC Practice
February 24:
HW due Wednesday 2/25... Complete classwork below:
CW: See above
February 23:
HW due Tuesday 2/24:
CW: Polygon Grab Bag to review for Unit 4 Test
February 19:
HW due Monday 2/23:
CW: Convex versus concave polygons... see this link for an explanation of the difference. Note: the formula for the sum of the interior angles of a polygon is true for ALL polygons and the sum of the exterior angles is 360 for ALL polygons.
February 18:
No HW due Thursday 2/19 (9th graders participated in Romeo & Juliet rehearsal)
February 17: SNOW DAY!
February 12:
HW due Tuesday 2/17
CW: Continuation of regular polygons (proofs will carry over to Monday!)
February 11:
*Shortened class due to field trip*
See February 10 for Homework (4.8 Regular Polygons Homework)
February 10:
HW due Thursday 2/12:
CW: Regular Polygons: Using the definition (polygons that are equilateral and equiangular), students determined interior and exterior angle measurements given various pieces of information (ex: number of sides, sum of interior angles, measure of an exterior angle, etc.).
February 9:
HW due Tuesday 2/10... just complete the circled numbers... if the scan is hard to read: #15-17, 22-25, 28-31
CW: Solving problems using interior and exterior angle sums (check back for a filled in copy)
February 5:
No HW due Monday 2/9
CW: Quadrilateral Quiz
February 5: QUADRILATERAL QUIZ!
Study Materials below:
February 4:
HW due Thursday 2/5: STUDY!
CW:
February 3:
HW due Wednesday 2/4:
CW: Review of factoring and solving a quadratic equation and applying to the properties we know about parallelograms. For a review of solving quadratic equations, follow examples 3 and 7 in this link.
February 2:
HW due Tuesday 2/3: STUDY! Below find the proof answer keys and a copy of the blank proofs (the blank proofs will be handed out in class so you can practice!)
CW: Proof review
January 29:
HW due Monday 2/2:
1. Complete Sections I - IV:
2. Gather your parallelogram proofs, according to the study guide:
January 28:
HW due Thursday 1/29: Check your homework that was due Tuesday (See January 27: Parallelogram Proof Part 2) against the answer key below:
CW: Proof Day! We completed proofs 1-3... proving a quadrilateral is a parallelogram.
January 28: Quadrilateral Detective Project DUE
Each case will be graded according to the criteria below:
1. Quadrilateral ABCD is correctly graphed (1 pt)
2. Quadrilateral ABCD is correctly identified (1 pt)
3. Evidence includes ALL necessary calculations and explanations (slope, distance, etc.) (2 pts)
4. Area of Quadrilateral ABCD is correctly calculated (1 pt) (use this website if you are struggling to find area)
5. Thorough evidence is show to justify area (2 pts)
January 27:
HW due Wednesday 1/28: PROJECT!
CW: Applying properties of quadrilaterals to solve problems. (Check back for the copy with the answers filled-in.)
January 26:
HW due Tuesday 1/27:
CW: 1. Discussed how to find area of figures in the Quadrilateral Detective Project (box method) 2. Group proofs to be presented on the next "proof day" (Wednesday).
January 22:
HW due Monday 1/26: Make sure both parallelogram proofs are complete.
CW: 1. Use coordinate geometry to justify a specific quadrilateral. 2. Review of Case #2 for project (due Wednesday)
January 21:
HW due Thursday 1/22: Complete Case #2 in the Quadrilateral Detective Project.
CW: 1. Quadrilateral Property sorting activity for rhombus, parallelogram, square, and rectangle.
2. Proof on the coordinate plane (see document below):
3. This is the link for the description of most of the quadrilaterals we have studied.
January 20:
HW due Wedensday 1/21: Try to create a quadrilateral family tree with the following: quadrilateral, square, rhombus, rectangle, parallelogram, isosceles trapezoid, trapezoid, and kite
CW: PARCC Practice Test, start of activity on defining characteristics of various quadrilaterals
Unit 4 starts January 20!
January 15: Triangle Congruence Proof Assessment
No HW due Tuesday 1/20 (No school Monday)
January 14:
HW: STUDY for the test! Here is one more problem to practice if it is helpful:
CW: The proof practice below as well as a "proof poster". See Ms. Rapoport if you missed this class.
January 13:
HW due Thursday 1/15
CW: Mid-Segment Theorem Proof and Mid-segement practice
January 12
HW due Tuesday 1/13:
HW due Wednesday, 1/14:
Read through the Expectations document (you have a hard copy and it can be found on my main Wiki page).
CW:
May 4:
HW due Tuesday 5/5... complete classwork:
CW: relationships between circles and chords: